Finding the Fourth Proportional to 7,652,789.80, 10,560,860.70 and 4,168,142.21
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Solution
The fourth proportional to 7,652,789.80, 10,560,860.70 and 4,168,142.21 is: 5,752,042.12
Step by Step Solution
- Step 1: Write the proportion equation
7,652,789.80 : 10,560,860.70 = 4,168,142.21 : x - Step 2: Convert to fraction form
7,652,789.80/10,560,860.70 = 4,168,142.21/x - Step 3: Cross multiply
7,652,789.80x = 10,560,860.70 × 4,168,142.21 - Step 4: Simplify right side
7,652,789.80x = 44,019,169,257,600.14 - Step 5: Solve for x
x = 44,019,169,257,600.14/7,652,789.80 - Step 6: Final answer
x = 5,752,042.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.